Means for signaling on automobiles or the like vehicles.



WITNESSES B & G. BARBAROUX.

MEANS FOR SIGNALING 0N AUTOMOBILES. OR THE LIKE VEHICLES! APPLICATIONFILED MAB.29,1906.

'PATENTED JULY 10, 1906.

noise; but it should be adjacent to the motor.

UNITE STATES EMILIO BARBAROUX AND PATENT OFFICE.

GIACOMO BARBAROUX, OF TURIN, ITALY.

MEANS FOR SIGNALING 0N AUTOMOBILES OR THE LIKE VEHICLES.

Specification of Letters Patent.

- Patented July 10, 1906.

Application filed March 29, 1905. Serial No. 252,786.

performed to be particularly described and:

ascertained in and ment.

This invention relates to improved means for giving signals onautomobiles or the like vehicles more readily and effectively thanhitherto, and has for its principal object the employment of theexhaust-gases from the motor for operating any convenient or knownsignaling device, such as a whistle or a siren or the like.

The invention is carried into practice by inserting in the exhaust-pipeof the motor or in a casing leading from the exhaust-pipe a valve thatcan be worked by the driver so as to direct the gases to the signalingdevice when a signal or alarm is required or to direct the said gases tothe atmosphere when the signal or alarm is not required. The said valvemust not be placed beyond the part of the automobile which in Italian iscalled marmitta. The marmitta is a casing inserted in the exhaust-pipebetween the motor and the atmosphere with the object of renderingsilentas much as possible the by the following state- .discharge of thegases into the atmosphere,

which would otherwise produce a loud placed immediately The preferredform ofapparatus is illustrated inthe drawings, wherein- Figure 1 is asection ofthe whole apparatus, and Fig. 2 shows in front view a detailof the same; but the invention is not limitedto the precise detailsshown.

A is a casingihav'ing three openings B, C, and D, of which B isinserted. in theexhaustpipe leading-fr0m the motor, '0 leads from thephere, and on D is attached a device forsignaling actuated by fluids,such as a whistle,

on' siren; or similar apparatus. The 0 enings B 0 face each other, andbetween t em is a valve-seat G H inclined at an angle. of,

say, about forty-five degrees to the axis common to both openings. resta spindle-valve E, pivoted in the casing by means of a spindle F,capable of being On this seat canoperated through convenient links orthe like by the driver of the automobile. When the said valve E restsonthe seat G H, the communication between C and the inside of the casing,and consequentlybetween B and C, is

interrupted; but when it is turned into the position shown by dottedlines it closes ;the

mouth D of the passage from the inside -of the casing to the signalingdevice aforesaid.

The valve E is provided with channels, two, I L, being shown in thedrawings, which.

start from the outside edge of the valve and converging to a point M,which channels are excavated in that face of the valve coming in contactwith the seat G H, so as to form airholes between the valve and itsseat.

During the ordinary running of the automobile the valve' is maintainedin'thedotted position against the opening D, so that the exhaust-gasescoming from the motor to B go freely through the casing and comeout byC, passing therefrom to the marmitta or dithe working of the signalingdevice, but". would .have to pass with considerable difiiculty throughthe same, finds a passage through the channels I L, going .through themdirectly to the marmitta or atmosphere,

so that by suitably proportioning the section of the channelsorair-holes with the force of the motor the remarkable result ,isobtained of never having in the casing A a rise of'pressure so high asto affect in theformofadam gerou's counterressure the working of themotors, especia y when runningata'high speed. v

Important features of the apparatus :are

consequently the inclinat-ipngiven to seatG H and the disposition ofchannels .or air-holes 1 inthe valve, as aforesaid, preventing dengerouscounterressure during .the .-operation of thesigna g apparatus.

Ha'vin now partleu arly describedandes certaine .t e nature of 'our saidinvention") and in wha -manner the same is to berformed, we declarethat'what we claim 15- 1. A device of the" character herein de--scribed, comprising a with three openings therein, having communicationwith, the exhaust-pipe of a motor, and a valve for normally closing oneof the openings adapted to be swung to close another of the openings,and to open the one first closed thereby, said valve havin one or morechannels on the face thereof arthest from the said one of the openingsfirst closed thereby. v i

A device of thecharacter described,

comprising a casing with three openings and a valve for normally closinganother 'of said openings, adapted to be swung on said I 5 valve-seat,and provided on its face adjacent to the seat, with intersectingconvergentchannels leading from an edge thereof.

In witness whereof we have hereunto signed our names in the presence oftwo sub- 20 scribing witnesses.

EMIL'IO BARBAROUX.

GIACOMO BARBAROUX.

Witnesses:

GoTTARDo C. PIRONI, MARIO CAPUOINIA.

